Sort in AB order.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/vfs@1447707 13f79535-47bb-0310-9956-ffa450edef68
[VFS-452] HttpFileObject read/write attributes should reflect underlying FileSystem capabilities.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/vfs@1447711 13f79535-47bb-0310-9956-ffa450edef68